Migration to Java 25

• Migrated to Java 25
• Made catalogs thread safe
• Added caching of RelaxNG grammars

Catched 301 errors when retrieving grammars from the web

• Catched 301 status code errors when retrieving grammars from the web

Improved catalog and RelaxNG parsers

• Improved catalog and RelaxNG parsers

Updated license terms

• Updated license terms

Added French localization

• Added French localization

Improved DTD parsing

• Improved DTD parsing

Improved encoding handling

• Improved encoding handling

Added catalog manager

• Added catalog manager

Added support for very large XML files

• Added support for very large XML files

Switched to Java 21

Switched to Java 21